Hi, I have created a PVA bot in production mode within the DS environment. I have a Teams channel named "DS," and individuals in the DS team can access my bot. However, I want to share it with users who are outside the DS Teams channel as well. Please refer to the image below for more details.

When I attempt to add a user's email, nothing is being displayed. On the other hand, if I search for specific Teams channels, they are being displayed. Consequently, I decided to create a new Teams channel called "testing-bot." Unfortunately, this new channel is not appearing in the search bar. Why is this the case?
Furthermore, I'd like to emphasize that while developing the bot using Canvas, I am able to include a person's email within the sharing options. However, when transitioning to the production phase, I'm required to add security groups or Teams channels for sharing.